研究了Bi2O3-V2O5系复合添加剂对Ni-Cu-Zn铁氧体的烧结及其磁性能的影响.研究表明,Bi2O3-V2O5系复合添加剂具有促进晶粒生长的作用,随着添加量的增加,样品断面形貌显示大晶粒增多,X射线衍射分析表明,过多的添加剂引起少量的杂相析出,晶界变宽。然而,适当量的Bi2O3-V2O5系复合添加剂能使普通Ni-Cu-Zn铁氧体的烧结温度降至875℃以下,烧结时间缩短为30min,烧结样品的磁导率可达195(10MHz)。
The effects of Bi2O3-V2O5 on sinterability and magnetic properties were investigated. The results show that, the addition of Bi2O3-V2O5
can accelerate the grains growing. The morphology of the sample’s section shows large grains increasing in direct ratio with amount of the addition. XRD patterns
confirm that a small amount of unknown phases appear and the grain boundary becomes more thick with an increace of the amount of the additive. But, this addition of
sintering aids can lower the sintering temperature to less than 875℃, and shorten soaking time to 30min for Ni-Cu-Zn ferrite. The permeability of the
ferrite added 1wt% the sintering aids can reach to 195 at 10MHz.
参考文献
| [1] | 张药西. 电元件与材料, 2001, 1: 25--29. [2] 周济, 等. 功能材料, 1997, 28 (1): 22--25. [3] Jean Jau-Ho, Cheng Horng Lee. J. Am. Ceram. Soc., 1999, 82 (2): 345--350. [4] Zhao Meiyu. Wang Yilin. Wu Wenjun, et al. MOTOROLA Annual Report, 2000. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%